To humans, having a healthy immune system is essential. Our immune system is important because it

The immune system depends on the body’s structures to help it function. For instance, the skin acts as the “body’s first line of defense.” If a pathogen finds a breach in the skin barrier, it is the circulatory system that must now signal the immune system of the invader. Shortly after, white blood cells will be notified of the infection and will target and destroy the pathogen.

The innate immune system is effective to a certain degree. That said, if the environment is regulated then the body is less likely to get ill. Innate immunity is effective as once the patient matures his immune system will mature due to the B and T memory cells. The memory cells will help the body prepare for the virus once it has arrived. The memory cells will send specialised lymph nodes to the invading pathogen. The B and T memory cells are key to immunity of a virus.

The body’s protection against viruses, bacteria and other types of invasions is our immune system (Tortora, 2014).

The main function of the immune system is to protect the body from infectious agents such as viruses and other toxins. The immune system can fail us in two ways-either by becoming under-vigilant, letting infections enter the body, or over-vigilant, so that it is the immune system itself, rather than an infectious agent that causes illness.

The immune system is made up of trillions of specialised cells (white blood cells) that detect and destroy pathogens or their toxins. Some white blood cells, which are

As described by the Centers for Disease Control, chronic disease is the leading cause of death and disability in the United States. A The body is so well designed in some areas yet so poorly designed in others. Why has selection left us so vulnerable to disease? (Nesse, 2005.) Cancer, Diabetes, Cardio vascular,and Respiratory disease. (Infectious and Chronic Disease, 2015.) The immune system is the first line of defense against diseases and infections it a system of organs, tissue cells, and cell products such as antibodies. These antibodies neutralize potentially pathogenic organisms or substances. Signs of our immune system at work are coughing, fever, pain, nausea, vomiting, anxiety and fatigue; these are not abnormalities yet people seek medical help. The presence of these symptoms are fighting mechanisms of our immune system, thus being beneficial since they are aversive and are not themselves problems but a solution. The evolution significance of a disease like sickle cell, creates an immunity to malaria. “Sickle Cell Anemia, as long as carried heterozygous (AS), serve as an effective preventable took against the largest infectious disease killer in the world.” (Understanding our

The immune system is a system of biological structures made up of many types of cells that work to protect the body against illness and infection (Blum & Bender 11). The immune system runs along 70% of the digestive tract and attacks viruses, bacteria, mold, parasites and foreign proteins in food that may cause harm to the body (Blum & Bender 11). The immune system has two main types of cells that it uses to fight off foreign invaders, which are killer B and T cells. T-killer cells directly attack anything they do not recognize while the B-cells produce antibodies that grab onto anything they find foreign and dangerous (Blum & Bender 11). The immune system also has two types of regulator cells that control the production of the killer T and B cells. These are the T helper cells and T regulator cells that turn on or off the immune response (Blum & Bender 11). When the immune system is healthy, both the T cells and B cells are in balance. However, when the immune system becomes ill more killer T and B cells are produced than T regulator and helper cells. This causes an imbalance in immune function and leads to autoimmune

        At this very moment, an army is attacking you. You are fighting this war without lifting a finger. You are asleep. Eating. Talking. Breathing. Anything you do, you are fighting an army. It's called Influenza. Or pneumonia. Maybe it's bronchitis. Or maybe, gastroenteritis is putting all of its power together and planning a sneak attack. But don't worry. You have an army, too. It's called your Immune System. And it may lose battles, the enemy may overcome you, but your immune system will not go down without a fight. The immune system is a complex army... inside your body! Inside of

The immune system consists of a defense system that guards the body against invasion from infections and other diseases. Normally, a healthy person's immune system has the capability to differentiate between its own cells and cells that represent threats to the health of the body. (Craft and Kanter, 2002). Autoimmune disease refers to a broad range of over 80 acute, long-lasting diseases that affect nearly every organ in the body. (Wrong Diagnosis.com, 2000).

The body has two immune systems: the innate immune system and the adaptive immune system.

Normally the body is protected by the immune system. When the immune system detects an unwelcome visitor such as fungi, bacteria and or viruses

Lymphocytes are a type of white blood cell, which are an important part of the immune system. Lymphocytes can defend the body against infection because they can distinguish the body’s own cells from foreign ones. Once they recognize foreign material in the body, they produce chemicals to destroy that material. Two types of lymphocyte are produced in the bone marrow before birth.

Have you ever wondered how your body works? Did you ever think about how your body defends itself from outside invaders? Remember the last time you were sick. Did you know how your body fought and killed the sickness? All these questions can be answered by learning about one of the most important systems in your body, the immune system.

Irrefutably, the immune system is ones’ shield against pathogens, ones’ knight in shining armor that confronts intruders. Over time the immune system can deteriorate, and that comes with age and declining health. Other times the immune system fights against itself causing autoimmune diseases that may or may not do irreparable harm. And sometimes, immune deficiency can be acquired. This is the case of Acquired Immune Deficiency Syndrome (AIDS). AIDS is a disease where the immune system depreciates its capability over the course of the illness due to Human Immunodeficiency Virus, the causative agent.

Our immune system is the second most complex system in our body. It is made up of organs, cells and proteins that work together to protect our bodies from harmful bacteria, viruses or other microorganisms that can cause diseases. Usually we don’t notice our immune system defending us against pathogens, but if the pathogen (harmful microorganism) is aggressive or if our body hasn’t ever come into contact with it, we can get sick. The jobs of our immune system are to recognise pathogens, as well as neutralise and remove them from our body. Our immune system also has to fight our own cells if they have changed due to an illness, for example, cancer. (1)